JP2016533139A5 - - Google Patents

Claims (13)

Selecting a cyclic prefix overhead for an orthogonal division multiple access (OFDMA) symbol to be transmitted in broadcast, wherein the cyclic prefix overhead is an integer multiple of a unit fraction whose denominator is 75 or 180 A step selected from a series of fractional cyclic prefixes; and
Selecting a total duration including a cyclic prefix duration for a symbol transmitted in a subframe and a symbol duration , the cyclic prefix duration being a carrier per resource block (RB) Is selected based on the series of fractional cyclic prefixes from one or more cyclic prefix durations determined to yield an integer of:
Transmitting the OFDMA symbol using an integer number of carriers per RB . A method of wireless communication by a wireless communication device . The integer number of carriers per RB is the formula:
Number of carriers per RB = 180,000 (Hz) × total duration (1-fractional cyclic prefix), 180,000 (Hz) represents RB bandwidth, and the total duration is the OFDMA symbol time and the cyclic Represents the sum of the click prefix duration,
The method of claim 1 . The method of claim 1 , wherein the fraction is 180 and the total duration comprises 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 milliseconds. Wherein one or each of the plurality of cyclic prefix duration, to maintain the cyclic prefix overhead the selected method of claim 1. 5. The method of claim 4 , wherein the denominator is 75 and the one or more cyclic prefix durations include durations of 2.5, 5, and 10 milliseconds resulting in the integer number of carriers per RB. . The method of claim 1, wherein the selected cyclic prefix overhead is less than a normative cyclic prefix overhead . A means for selecting cyclic prefix overhead for orthogonal division multiple access (OFDMA) symbols to be transmitted in broadcast, wherein the cyclic prefix overhead is an integer multiple of a unit fraction whose denominator is 75 or 180 Means selected from a series of fractional cyclic prefixes, and
Means for selecting a total duration including a cyclic prefix duration for a symbol transmitted in a subframe and a duration of the symbol , the cyclic prefix duration per resource block (RB) Means selected from one or more cyclic prefix durations determined to yield an integer number of carriers based on the series of fractional cyclic prefixes ;
Means for transmitting the OFDMA symbol using an integer number of carriers per RB . The integer number of carriers per RB is the formula:
Number of carriers per RB = 180,000 (Hz) × total duration (1-fractional cyclic prefix), 180,000 (Hz) represents RB bandwidth, and the total duration is the OFDMA symbol time and the cyclic Represents the sum of the click prefix duration,
The device according to claim 7 . 8. The apparatus of claim 7 , wherein the fraction is 180 and the total duration includes 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 milliseconds. 8. The apparatus of claim 7 , wherein each of the one or more cyclic prefix durations maintains the selected cyclic prefix overhead. 11. The apparatus of claim 10 , wherein the denominator is 75 and the one or more cyclic prefix durations include durations of 2.5, 5, and 10 milliseconds resulting in the integer number of carriers per RB. . 8. The apparatus of claim 7 , wherein the selected cyclic prefix overhead is less than a normative cyclic prefix overhead . A non-transitory computer-readable storage medium storing a program code for causing a computer to perform the method according to claim 1 .